networkservices: add forward_attributes to google_network_services_authz_extension

[martijneken]

Description

Adds support for the forward_attributes (API: forwardAttributes) field to google_network_services_authz_extension.

forward_attributes allows users to specify a list of Envoy attributes (up to 16) forwarded to the callout extension server in the ProcessingRequest.attributes map field. This follows the existing implementation in google_network_services_lb_traffic_extension, google_network_services_lb_route_extension, and google_network_services_lb_edge_extension.

References

• Proto: google.cloud.networkservices.v1main.AuthzExtension.forward_attributes (field 13)
• Documentation: Service Extensions Attributes

Affected Resource(s)

• google_network_services_authz_extension

Tests

• Updated acceptance test TestAccNetworkServicesAuthzExtension_update to cover create and update of forward_attributes.
• Ran USE_BAZEL=0 make test in mmv1.

Release Note Template

networkservices: added `forward_attributes` field to `google_network_services_authz_extension`

[github-actions]

Googlers: For automatic test runs see go/terraform-auto-test-runs.

@slevenick, a repository maintainer, has been assigned to review your changes. If you have not received review feedback within 2 business days, please leave a comment on this PR asking them to take a look.

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit 8e0ec96:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	4 files changed, 53 insertions(+)
google-beta provider	View Diff	4 files changed, 53 insertions(+)
terraform-google-conversion	View Diff	4 files changed, 39 insertions(+)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
102	99	2	1

Affected Service Packages

• networkservices

Learn how VCR tests work

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Step 1: Replaying Mode

Action taken

Found 1 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit.

Click here to see the affected tests

• TestAccNetworkServicesAuthzExtension_update

View the replaying VCR build log

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Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
✅ Log	✅	TestAccNetworkServicesAuthzExtension_update

🟢 All tests passed!

View the recording VCR build log or the debug logs folder for detailed results.

@martijneken, @slevenick VCR tests complete for 8e0ec96!